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/* JTAG low-level I/O to DLC9(10?) cables
Using I2C addresses above 0x80 in the USRP/XGUFF framework
Copyright (C) 2005-2011 Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef IOXPC_H
#define IOXPC_H
#if defined (__WIN32__)
#include <windows.h>
#include <libusb0/usb.h>
#else
#include <usb.h>
#endif
#include "iobase.h"
#define XPC_VENDOR 0x03fd
#define XPC_DEVICE 0x0008
#define XPC_INTERNAL 1
#define XPC_PROG (1<<3)
#define XPC_TCK (1<<2)
#define XPC_TMS (1<<1)
#define XPC_TDI (1<<0)
#define XPC_TDO (1<<0)
/*
* send max 4096 bytes to CPLD
* this is equal to 8192 TDI plus 8192 TDO bits
*/
#define CPLD_MAX_BYTES (1<<12)
/*
* Buffer has to hold 8192 bits for write, each 2 bytes hold 4 bits for write, so this has to be 4096
* Buffer has to hold 8192 bits for read, each byte holds 8 bits for read, so this has to be 1024
* Therefore, buffer size -> CPLD_MAX_BYTES
*/
typedef struct
{
int in_bits;
int out_bits;
int out_done;
unsigned char *out;
unsigned char buf[CPLD_MAX_BYTES];
}
xpc_ext_transfer_state_t;
class IOXPC : public IOBase
{
protected:
int bptr, calls_rd, calls_wr, call_ctrl;
int subtype;
unsigned long long hid;
FILE *fp_dbg;
public:
IOXPC();
int Init(struct cable_t *cable, char const *serial, unsigned int freq);
~IOXPC();
void txrx_block(const unsigned char *tdi, unsigned char *tdo, int length, bool last);
void tx_tms(unsigned char *pat, int length, int force);
private:
struct usb_dev_handle *xpcu;
/// String representation of last error
const char *error_str;
int xpcu_output_enable(struct usb_dev_handle *xpcu, int enable);
int xpcu_request_28(struct usb_dev_handle *xpcu, int value);
int xpcu_write_gpio(struct usb_dev_handle *xpcu, unsigned char bits);
int xpcu_read_gpio(struct usb_dev_handle *xpcu, unsigned char *bits);
int xpcu_read_cpld_version(struct usb_dev_handle *xpcu, unsigned char *buf);
int xpcu_read_hid(struct usb_dev_handle *xpcu);
int xpcu_read_firmware_version(struct usb_dev_handle *xpcu, unsigned char *buf);
int xpcu_select_gpio(struct usb_dev_handle *xpcu, int int_or_ext );
int xpcu_shift(struct usb_dev_handle *xpcu, int reqno, int bits, int in_len, unsigned char *in, int out_len, unsigned char *out );
void xpcu_add_bit_for_ext_transfer( xpc_ext_transfer_state_t *xts, bool in, bool tms, bool is_real );
int xpcu_do_ext_transfer( xpc_ext_transfer_state_t *xts );
int xpc_usb_open_desc(int vendor, int product, const char* description, unsigned long long int serial);
bool xpc_close_interface (struct usb_dev_handle *udh);
};
#endif // IOXPC_H
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